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Weekly Routing Table Report
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats at lists.apnic.net
For a graphical representation, please see http://www.apnic.net/stats/bgp.
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 10 Aug, 2001
Analysis Summary
----------------
BGP routing table entries examined: 106745
Origin ASes present in the Internet Routing Table: 11395
Origin ASes announcing only one prefix: 4165
Transit ASes present in the Internet Routing Table: 1480
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 50
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 16
Number of addresses announced to Internet: 1221779990
Equivalent to 72 /8s, 210 /16s and 226 /24s
Percentage of available address space announced: 33.0
Percentage of allocated address space announced: 63.5
Percentage of available address space allocated: 51.9
Total number of prefixes smaller than registry allocations: 72999
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15952
Prefixes being announced from the APNIC address blocks: 14320
APNIC Region origin ASes present in the Internet Routing Table: 1341
APNIC Region origin ASes announcing only one prefix: 449
APNIC Region transit ASes present in the Internet Routing Table: 216
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 75951605
Equivalent to 4 /8s, 134 /16s and 237 /24s
Percentage of available APNIC address space announced: 74.7
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239, 17408 - 18431
APNIC Address Blocks 61/8, 202/7, 210/7 and 218/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 73296
Prefixes being announced from the ARIN address blocks: 53107
ARIN Region origin ASes present in the Internet Routing Table: 6855
ARIN Region origin ASes announcing only one prefix: 2031
ARIN Region transit ASes present in the Internet Routing Table: 695
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 202813450
Equivalent to 12 /8s, 22 /16s and 176 /24s
Percentage of available ARIN address space announced: 75.6
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153
3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466
7723 - 8191, 10240 - 12287, 13312 - 15359
16384 - 17407, 18432 - 20479, 21504 - 22527
ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 17492
Prefixes being announced from the RIPE address blocks: 13639
RIPE Region origin ASes present in the Internet Routing Table: 3206
RIPE Region origin ASes announcing only one prefix: 1685
RIPE Region transit ASes present in the Internet Routing Table: 570
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 104893563
Equivalent to 6 /8s, 64 /16s and 140 /24s
Percentage of available RIPE address space announced: 69.5
RIPE AS Blocks 1877 - 1901, 2042, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv Description
1221 1595 1315 Telstra Pty Ltd
2764 437 361 connect.com.au pty ltd
703 405 365 UUNET Technologies, Inc.
2907 365 1783 SINET Japan
4755 297 163 Videsh Sanchar Nigam Ltd. Aut
4134 238 1698 Data Communications Bureau
7474 238 292 Optus Communications Pty Ltd
4740 210 26 OzEmail ISP
7539 200 160 TANet2, sponsored by NSC, TAI
4766 177 1336 Korea Internet Exchange for "
7545 150 25 TPG Internet Pty Ltd
9443 143 39 Primus Telecommunications
4786 132 17 NetConnect Communications Pty
4763 120 69 Telstra New Zealand
17561 116 167 Internet service provision to
4713 115 886 NTT Communications Corporatio
9583 114 61 Satyam Infoway Ltd.,
7586 112 17 Paradox Digital Pty Ltd
4812 110 278 China Telecom (Group)
7657 110 22 The Internet Group Limited
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 692 1746 UUNET Technologies, Inc.
3301 431 918 TeliaNet Sweden
15870 406 12 Global Center Frankfurt
1257 280 521 SWIPnet Swedish IP Network
1270 236 865 UUNET Germany
3215 233 497 France Telecom / &Equant
680 229 2069 DFN-IP service G-WiN
15878 201 8 Global Center Paris
786 184 1890 The JANET IP Service
3320 183 1940 Deutsche Telekom AG
719 180 291 LANLINK autonomous system
5515 175 654 Sonera Finland Autonomous Sys
8708 152 15 Romania Data Systems S.A.
5400 137 66 Concert European Core Network
3303 132 576 Swisscom Ltd
2856 126 776 BTnet UK Regional network
8503 124 3 PCNET - PCNET DATA Network
5549 122 66 Nextra Deutschland GmbH + Co.
517 119 271 KPNQwest Germany GmbH
5511 111 170 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2301 8103 UUNET Technologies, Inc.
7018 993 7069 AT&T
1 884 8688 BBN Planet
3908 883 627 Supernet, Inc.
7046 863 1005 UUNET Technologies, Inc.
2551 798 656 ICG NetAhead, Inc
1239 683 3217 Sprint
2914 509 2296 Verio, Inc.
690 491 76 Merit Network
4293 489 99 Cable & Wireless USA
209 468 2136 Qwest
3561 411 2381 Cable & Wireless USA
2548 392 1009 Business Internet, Inc.
2149 383 296 Performance Systems, Inc.
18994 370 10 Global Crossing
3549 361 818 Global Crossing
577 349 617 Bell Advanced Communications
4323 348 318 Time Warner Communications, I
11371 340 100 Rhythms NetConnections
3967 337 456 Exodus Communication
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2301 8103 UUNET Technologies, Inc.
1221 1595 1315 Telstra Pty Ltd
7018 993 7069 AT&T
1 884 8688 BBN Planet
3908 883 627 Supernet, Inc.
7046 863 1005 UUNET Technologies, Inc.
2551 798 656 ICG NetAhead, Inc
702 692 1746 UUNET Technologies, Inc.
1239 683 3217 Sprint
2914 509 2296 Verio, Inc.
690 491 76 Merit Network
4293 489 99 Cable & Wireless USA
209 468 2136 Qwest
2764 437 361 connect.com.au pty ltd
3301 431 918 TeliaNet Sweden
3561 411 2381 Cable & Wireless USA
15870 406 12 Global Center Frankfurt
703 405 365 UUNET Technologies, Inc.
2548 392 1009 Business Internet, Inc.
2149 383 296 Performance Systems, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
6971 UNALLOCATED 64.42.0.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.0.0/17 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.40.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.48.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.60.0/22 2914 Verio, Inc.
6971 UNALLOCATED 64.42.72.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.108.0/22 2914 Verio, Inc.
6971 UNALLOCATED 64.42.112.0/20 2914 Verio, Inc.
6971 UNALLOCATED 64.87.64.0/19 2516 Kokusai Denshin Denw
65501 PRIVATE 64.243.116.0/24 16890 K&G Network Services
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
64842 PRIVATE 161.217.144.0/24 7046 UUNET Technologies,
64842 PRIVATE 161.217.145.0/24 7046 UUNET Technologies,
6971 UNALLOCATED 192.103.229.0/24 2516 Kokusai Denshin Denw
6971 UNALLOCATED 192.103.230.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 192.103.232.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 192.103.236.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 192.103.237.0/24 2516 Kokusai Denshin Denw
65460 PRIVATE 192.231.11.0/24 7018 AT&T
6971 UNALLOCATED 199.249.223.0/24 2516 Kokusai Denshin Denw
9501 UNALLOCATED 202.53.96.0/24 17443 International Intern
9501 UNALLOCATED 202.53.96.0/20 17443 International Intern
9501 UNALLOCATED 202.53.97.0/24 17443 International Intern
9501 UNALLOCATED 202.53.98.0/24 17443 International Intern
9501 UNALLOCATED 202.53.99.0/24 17443 International Intern
9501 UNALLOCATED 202.53.100.0/24 17443 International Intern
9501 UNALLOCATED 202.53.101.0/24 17443 International Intern
9501 UNALLOCATED 202.53.102.0/24 17443 International Intern
4834 UNALLOCATED 202.74.192.0/20 4648 Netgate
17657 UNALLOCATED 202.161.160.0/20 9653 Transit link for Hon
4831 UNALLOCATED 202.172.32.0/20 9740 Cable & Wireless Net
6971 UNALLOCATED 206.58.248.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 206.58.248.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 206.58.252.0/23 2914 Verio, Inc.
6971 UNALLOCATED 206.58.254.0/23 2914 Verio, Inc.
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
65515 PRIVATE 212.110.142.0/24 5593 CRIS-AS
6971 UNALLOCATED 216.105.192.0/20 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.121.224.0/19 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.192.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.192.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.200.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.202.0/23 2914 Verio, Inc.
6971 UNALLOCATED 216.174.204.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.174.208.0/20 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.232.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.174.240.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.128.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.128.0/17 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.229.96.0/20 2516 Kokusai Denshin Denw
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
82.105.0.0/16 3269 TELECOM ITALIA
82.105.128.0/17 3269 TELECOM ITALIA
128.65.0.0/16 3463 ACES Research Inc
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 400 Headquarters Standard Systems
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 BBN Planet
144.7.0.0/16 701 UUNET Technologies, Inc.
153.34.0.0/15 701 UUNET Technologies, Inc.
153.36.0.0/14 701 UUNET Technologies, Inc.
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
172.32.1.0/25 1221 Telstra Pty Ltd
201.115.100.0/24 7018 AT&T
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:5 /10:6 /11:11 /12:32
/13:84 /14:221 /15:367 /16:6930 /17:1198 /18:2277
/19:6805 /20:5606 /21:4606 /22:6870 /23:8705 /24:60660
/25:328 /26:389 /27:417 /28:416 /29:353 /30:337
/31:2 /32:102
Number of /24s announced per /8 block (Global)
----------------------------------------------
9:3 12:396 13:10 15:1 17:6 20:2
24:661 26:1 32:35 38:7 43:1 44:2
53:2 55:1 57:13 61:63 62:138 63:1895
64:1328 65:552 66:404 80:33 128:42 129:102
130:21 131:45 132:12 133:1 134:169 135:10
136:22 137:127 138:218 139:49 140:133 141:158
142:65 143:41 144:141 145:11 146:147 147:137
148:202 149:93 150:35 151:212 152:418 153:31
154:24 155:77 156:80 157:114 158:72 159:65
160:47 161:148 162:64 163:153 164:145 165:91
166:185 167:136 168:116 169:34 170:275 171:2
192:5389 193:1913 194:2055 195:832 196:408 198:3708
199:3382 200:2365 201:1 202:2738 203:4611 204:3527
205:2373 206:2953 207:2891 208:3085 209:3057 210:520
211:126 212:791 213:453 214:8 215:13 216:3047
217:388 218:2
End of report
-----
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